I have also been trying www.123Contactform.com Seems to be highly ranked and have quite a bit more features than Google Forms, of course at a cost, but pretty reasonable. As I mentioned above you do have to make sure the sender is someone in the project explained by this service request in the Notifications section.
Sure, please first access this link: https://myaccount.google.com/lesssecureapps
and enable the "On" option.
Afterwards, please use this data in the SMTP option of the form's Notifications section:
- Host: smtp.gmail.com
- Port: 465
- Username: your Gmail address
- Password: your Gmail password
- Protocol: SSL
Then, you need to click on Test Connection and to enter the code that will arrive in your Gmail account.
Please try and let us know how it works.
Senior Support Specialist
The 123ContactForm Team